allergen
Information, Symptoms, Treatments and Resources
What is allergen?
An allergen is a substance that can cause an allergic reaction. Allergens are substances that, in some people, the immune system recognizes as "foreign" or "dangerous" but cause no response for most people.
Posts on allergen (2839)
My symptoms started three months ago, and have only occured on three separate occasions. Ou...
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Yesterday my adult daughter noticed that her lips started swelling and her arms were itchin...
Hi, My 11 year old son has had a constant dry cough for about 1 month. He coughs non stop ...
I used to feed my Eng. Bulldog nutromax with lamb dry food. I now switched him to homemade...
Can a person give poison ivy to someone else through everyday contact or sexual contact?
